CreateQuery dict_src_neg (children 3)
 Identifier dict_src_neg
 Columns definition (children 1)
  ExpressionList (children 3)
   ColumnDeclaration id (children 1)
    DataType UInt64
   ColumnDeclaration u64 (children 1)
    DataType UInt64
   ColumnDeclaration i32n (children 1)
    DataType Nullable (children 1)
     ExpressionList (children 1)
      DataType Int32
 Storage definition (children 1)
  Function Memory
